Hydraulic dolly



FIG. 1 is a front, left perspective view of the hydraulic dolly;

FIG. 2 is a front elevation view of the hydraulic dolly;

FIG. 3 is a left side elevation view of the hydraulic dolly, the right side being a mirror image thereof;

FIG. 4 is a rear elevation view of the hydraulic dolly;

FIG. 5 is a top plan view of the hydraulic dolly;

FIG. 6 is a bottom plan view of the hydraulic dolly; and,

FIG. 7 is a rear, right perspective view of the hydraulic dolly, shown in condition of use.

The broken lines shown in FIG. 7 show environment and form no part of the claimed design. 

CLAIM The ornamental design for a hydraulic dolly, as shown and described. 